PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-22:43:00
G01     94.4           30.4               11.9 +/-    1.19      20.6 +/-    1.19  0.040 / 0.050
G07     122.6          44.2               12.8 +/-    0.43      17.5 +/-    0.43  0.040 / 0.050
G11     71.4           40.7               11.1 +/-    1.21      15.9 +/-    1.21  0.090 / 0.110
G13     298.5          35.3                9.7 +/-    0.96      15.3 +/-    0.96  0.080 / 0.090
G17     210.5          51.5               13.3 +/-    0.67      16.5 +/-    0.67  0.040 / 0.050
G18     64.6           23.0                9.8 +/-    1.74      20.1 +/-    1.74  0.040 / 0.040
G19     212.4          23.0               14.0 +/-    2.23      28.6 +/-    2.23  0.230 / 0.350
G28     333.2          61.5               10.1 +/-    0.71      11.3 +/-    0.71  0.200 / 0.250
G30     88.7           78.4               11.1 +/-    0.50      11.4 +/-    0.50  0.080 / 0.160